Obama attempted to move control of the Census Bureau from the Commerce Department to the White House, to be managed by then Chief of Staff Rahm Emmanuel. 6. Obama had provided under the radar amnesty to illegal immigrants by allowing ICE Director John Morton to prohibit ICE officers from enforcing US immigration laws.
The primary enzymes responsible for DNA replication are DNA polymerases. Understanding the activity and limitations of DNA polymerases help in making sense of why DNA replication occurs the way it does. Key points are: 1  Prokaryotic cells contain three different DNA polymerases.2  Each have slightly different activities.uring DNA replication a DNA double helix must unwind and separate so that DNA polymerase enzymes can use each single strand as a template for the synthesis of a new double strand. Strand separation is catalyzed by a Helicase enzyme.
Because each strand can be used to make the other strand.The strands of the double helix separate, or unzip.The complementary strand will be GCATCC.DNA polymerase 013368718X_CH12_179-192.indd 9 1/5/09 12:05:28 PM. Lesson 12.3 â¢ Workbook A â¢ Copyright Â© by Pearson Education, Inc., or its afï¬ liates.